Science

Sunday, 28 December 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Liver
Liver filters blood.
It breaks down toxic particles, such as drugs and alcohol. It also destroys old and damaged blood cells.
Ganymede
Ganymede has a larger diameter than Mercury and is 5268 km.
Silver
Silver compounds are used to silver mirrors and to produce explosives (e.g. silver acetylides).
They are also used in analytical chemistry, e.g. to detect aldehydes (Tollens test).
Earth
Due to the Earth's rotation, the diameter of the equator is 43 km larger than the polar diameter.
The Earth is therefore a slightly flattened ball - this shape is called a geoid.
Phobos
Phobos was photographed by the following probes: Mariner 7, Mariner 9, Viking 1, Phobos 2, Mars Global Surveyor, Mars Express, and Mars Reconnaissance Orbiter.
Moon
The other side of the Moon is called the far side, not the "dark side" as some say, because each part of our satellite is darkened for exactly the same period.
Milky Way
The Milky Way's closest neighbor is the Canis Major Dwarf.
This dwarf galaxy is located 42.000 years ago. light years from the center of our galaxy and 25 thou ...
Earth
The first man to leave his home planet was Yuri Gagarin.
A two-hour flight by a Soviet astronaut outside the Earth's atmosphere took place in 1961.
lava
Theoretically, magma can only be studied after it has become lava.
However, in situ magma has been encountered in geothermal drilling on three occasions - twice in Iceland and once in Hawaii.
Cosmos
We are currently living in the fourth stage of the universe’s development.
It resembles the one 12.8 billion years ago and will continue to look like this for the next billions of years.